William M. Snead and Nancy Johnson Snead

Searching for William M Snead who married Nancy Johnson Abt.1820's who had a daughter named Marjory, she was about 2 years old and was raised by Wm.On the 1870 census Marjery was living next door to William and Barbery and William and Fannie.Nancy was living with Marjory so I am guessing Wm. M had died.any info on this family from Barbour County AL.????